Current advice from this Department is contained in Local Transport Note (LTN) 1/95, The Assessment of Pedestrian Crossings and Local Transport Note 2/95, the Design of Pedestrian Crossings.
The documents can be made available in the Library of the House and are on the internet at the following address:
http://www.dft.gov.uk/pgr/roads/tpm/ltnotes/ssessment ofpedestriancro4033.pdf
http://www.dft.gov.uk/pgr/roads/tpm/ltnotes/esignof pedestriancrossin4034.pdf